Filename Parameter_set 1230744988_d959669cca_o.jpg A 14508398942_64993ae2cb_o.jpg B 15509029_9890eb0447_o.jpg C 16328794025_3b04a7663f_o.jpg C 2904006517_a40e2aec5c_o.jpg C 3665452193_508383cc61_o.jpg B 3912994232_dac125a0d3_o.jpg B 4210275605_f015515d07_o.jpg B 438706688_4c87b7d8b3_o.jpg B 4578598208_b9f61142bf_o.jpg B 527327203_037b52aa00_o.jpg C 5340624136_1ff75f44e4_o.jpg B 5540131495_059e17f4f0_o.jpg B 6935527821_2464bbd507_o.jpg A 7158418_2215ef4a6e_o.jpg B 7390090600_033e3c9c93_o.jpg C 5917563764_a733b93eab_o.jpg B 5919538320_54f7e8daba_o.jpg B 6304863203_0811098d3f_o.jpg B 923930667_0bb219d554_o.jpg B adidas.png B ----------------------------------------------- Parameter set A : { missing. } Parameter set B : { energyThresh = 1e-3 maxIterations = 1 minimizeMaxIter = 10000 sumConstraint = 1 reflectanceInit = 'mixed' startFac = 0.3 c_R = 1 k = 150 kMeansRestarts = 4 clusteringInit = 'RhatR' c_smooth = 0.001 c_cret = 0.01 thresholdGray = 0.05 thresholdColor = 0.8 } Parameter set C : { energyThresh = 1e-3 maxIterations = 1 minimizeMaxIter = 10000 sumConstraint = 1 reflectanceInit = 'ones' c_R = 1 k = 150 kMeansRestarts = 4 clusteringInit = 'RhatR' c_smooth = 0.001 c_cret = 0.01 thresholdGray = 0.05 thresholdColor = 0.8 } Notes: more maxIterations did not improve the results for CG applications (also tested with default maxIterations = 250). I am unsure of parameter set B.